This FotodioX WonderPana FreeArc XL Kit for Sigma 12-24mm Art Lensfrom FotodioX WonderPana FreeArc XL Kit for Sigma 12-24mm Art Lensis designed to specifically fit the Sigma 12-24mm f/4 DG HSM Art lens, as well as a separately available WonderPana 8.0" Holder Bracket. Those items can be combined to allow for the convenient use of two 2.0mm thick filters measuring 7.9" wide, or one 2.0mm thick filter measuring 7.9" wide, along with one FotodioX 186mm round filter behind it. A compatible 186mm inner-pinch lens cap for 186mm FotodioX round filters is also provided.

The included WonderPana FreeArc XL Core Unit consists of two components, a front filter holder and a rear lens collar. Placement of this FreeArc XL Core Unit onto a Sigma 12-24mm f/4 DG HSM Art lens is easily accomplished by sliding the rear lens collar over the rear of the lens until it has achieved a secure fit. Afterward, the front filter holder can be screwed onto the front of the installed rear lens collar.

To use the WonderPana 8.0" Holder Bracket with the FreeArc XL Core Unit for a Sigma 12-24mm f/4 DG HSM Art lens, pre-tapped threaded inserts along the edge of the front filter holder accommodate six of the eight included brass short-screws for correct positioning of the WonderPana 8.0" Holder Bracket's two assembly pieces so that they are placed parallel to each other and can hold a 7.9" wide filter between them. Once the holder bracket and the front filter holder are combined, and the separate collar has been slid over the rear of a Sigma 12-24mm f/4 DG HSM Art lens, the front filter holder with the attached holder bracket can be screwed onto the installed rear lens collar.

After being fitted onto a Sigma 12-24mm f/4 DG HSM Art lens, the bearing design of this WonderPana FreeArc XL Core Unit allows a WonderPana 8.0" Holder Bracket to be rotated 360°. This permits the use of graduated neutral density and other filters that are enhanced by varied positioning.

A FotodioX WonderPana 8.0" Holder Bracket provides two pairs of filter slots, a configuration that accommodates two compatible rectangular filters. For each rectangular filter that is placed within one of the holder bracket's slots, its position is secured by integrated guides within each slot. These guides apply pressure along both sides of a filter that is sufficient to hold it in place, but permits movement of that filter. This can complement the use of graduated filters whose effect can be adjusted to better suit changing lighting conditions or creative demands by sliding them up or down within a filter slot.

This FotodioX WonderPana FreeArc XL Core Unit includes front filter threads, which allow a FotodioX 186mm round filter to be used along with a WonderPana 8.0" Holder Bracket. If a 186mm round filter is used on the attached WonderPana FreeArc XL Core Unit, the rectangular filter slot closest to the rear of the holder bracket becomes unavailable.

The FotodioX 186mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems and Filters is a 186mm front lens cap with a squeeze, spring, and snap-on mechanism. It is easy to install as well as remove and can attach to a WonderPana FreeArc XL filter holder system in order to protect the front element of a lens that any one of those systems is mounted on. Additionally, with the exception of the FotodioX Ultra Slim filters, this lens cap can be used to protect a FotodioX 186mm filter that is mounted on a FotodioX WonderPana FreeArc XL filter holder system.

Lens caps protect your lens or filter from scratches, fingerprints, and the elements when the lens or filter is not in use.

For Sigma 12-24mm f/4 DG HSM Art    WonderPana FreeArc XL Core Unit    Use with WonderPana 8.0" Holder Bracket    With Bracket, Holds 7.9" Wide Filters    Bracket Rotates 360° with FreeArc XL    Combine a 7.9" Wide and a 186mm Filter    186mm Slim Circular Polarizer Filter    1.25 to 8x Filter Factor, +0.3 to 3-Stop    Helps to Eliminate Reflections and Glare    186mm Center-Pinch Snap-On Lens Cap

• Compatible with a Sigma 12-24mm f/4 DG HSM Art lens
• Accommodates a separately available WonderPana 8.0" Holder Bracket
• With a WonderPana 8.0" Holder Bracket, allows for the convenient use of two 2.0mm thick filters measuring 7.9" wide, or one 2.0mm thick filter measuring 7.9" wide, along with one FotodioX 186mm round filter behind it
• Allows a WonderPana 8.0" Holder Bracket to be rotated 360° so that rectangular filters placed within it can be angled to the best position relative to the subject in front of the camera
• Includes 186mm front filter threads, which allow a FotodioX 186mm round filter to be used along with a WonderPana 8.0" Holder Bracket
• Constructed from aluminum alloy for durability while remaining lightweight
• 186mm front lens cap with a squeeze, spring, and snap-on mechanism
• Nylon pouch for storage and transport

Related Questions and Answers

Q: 1. Will this fit the Sigma 14-24 DG N sony e Mount?

A: Yes, if it is the Sigma DG DN Art lens.

Q: 2. How does this fit the Sigma 12-24mm when the hood doesn't detach? Do I need another accessory?

A: Nothing additional is needed. This fits over the hood. There are a few filter holders on this page. For the Sigma 12-24mm Art Lens make sure to select the holder that is specifically for that lens. BH #FO186EKS1224 • MFR #WNDPN186-ESNTLCP-SM1224F4

Q: 3. Do I need to buy another lens ring to fix this filter? This adapter is immediately attached to the lens or you need to buy something else? What is included with this filter?

A: What you see is in the photos is all you need if you want to use the polarizer. In the Box: FotodioX 186mm Slim Circular Polarizer Filter Filter Pouch Limited 2-Year Warranty FotodioX 186mm Center-Pinch Snap-On Lens Cap for Select WonderPana Systems & Filters Limited 2-Year Warranty WonderPana FreeArc XL Core Unit for Sigma 14-24mm f/2.8 DG HSM Art Lens Limited 2-Year Warranty If you want to use the square or rectangular filters, then you will need the brackets. Click on the link below to view; https://bhpho.to/32VgMWY

Q: 4. Will this mount to APS-C cameras?

A: Yes - in fact, I bought it specifically for that purpose. It gives you an FOV of about 19-38 - which is a pretty solid wide-angle range for a crop-frame camera.I haven't shot with this enough yet to post a full review, but I have been very pleased with what I have seen so far.

Q: 5. I need to use a clear or haze filter. Is it possible to utilize more than one filter at a time-a polarizer and an ND filter?

A: You cannot stack a uv filter on top of the Slim Circular Polarizer Filter included with the FotodioX WonderPana FreeArc XL Core Unit Kit for Sigma 14-24mm Art Lens with 186mm Slim Circular Polarizer Filter. Fotodiox 186mm filters are not designed with a front threads.

Q: 6. Does the filter holder or filters physically block any of the field of view of sigma 14-24 mm dg hsm f mount lense? Not dg "dn"

A: No, the FotodioX WonderPana FreeArc XL Core Unit Kit for Sigma 14-24mm Art Lens with 8.0" Holder Bracket would not physically block any of the field of view on a Sigma 14-24mm Art lens.

Q: 7. Anyone use this on an EOS R?

A: Yes, the Sigma 12-24mm f/4 DG HSM Art Lens for Canon EF will work fine on the Canon EOS R and EOS RP when used with the Canon EF-EOS R adapter. The link for that is, https://bhpho.to/2MaiSuh.

Q: 8. Does this work with the Sigma 14-24 mm lense that has the permanently attached hood?

A: Yeah this is made for that 14-24mm Sigma lens.

Q: 9. Can focus and aperture be manually adjusted when mounted via a lens mount adapter that lacks electronic contacts?

A: The focus can be controlled manually on an adapter without electronic contacts. However, that adapter would need some type of aperture control built into it.

Q: 10. What size is the image circle, will it cover a 33x44mm sensor?

A: This lens' image circle will not cover a 33x44mm sensor.